Bildübersicht
Fresnel's zone construction / zone plate
Principle: A zone plate is illuminated with parallel laser light. The focal points of several orders of the zone plate are projected on a ground glass screen.
Tasks:
1. The laser beam must be widened so that the zone plate is well illuminated. It must be assured that the laser light beam runs parallel over several meters.
2. The focal points of several orders of the zone plate are projected on a ground glass screen. The focal lengths to be determined are plotted against the reciprocal value of their order.
3. The radii of the zone plate are calculated.
| Artikel-Nr. | Artikelbezeichnung |
|---|---|
| P2220400 | Fresnel’s zone construction / zone plate |
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